{"bundle_type":"pith_open_graph_bundle","bundle_version":"1.0","pith_number":"pith:2021:I2NNQIWGLV5IYFGAJY6QXQ3LA4","short_pith_number":"pith:I2NNQIWG","canonical_record":{"source":{"id":"2106.11148","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CL","submitted_at":"2021-06-21T14:36:38Z","cross_cats_sorted":[],"title_canon_sha256":"c34f3399c5919a81797e3d27aecfabec233b69a2546aadeef8fae053ee1e40de","abstract_canon_sha256":"4d8e248cc641e173b78e6d0c33fe7e2d3996504b61882b65130eb9b9c35f648d"},"schema_version":"1.0"},"canonical_sha256":"469ad822c65d7a8c14c04e3d0bc36b0703f0d7ca748f61dee9c1bbc24c139e28","source":{"kind":"arxiv","id":"2106.11148","version":2},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2106.11148","created_at":"2026-07-05T03:32:53Z"},{"alias_kind":"arxiv_version","alias_value":"2106.11148v2","created_at":"2026-07-05T03:32:53Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2106.11148","created_at":"2026-07-05T03:32:53Z"},{"alias_kind":"pith_short_12","alias_value":"I2NNQIWGLV5I","created_at":"2026-07-05T03:32:53Z"},{"alias_kind":"pith_short_16","alias_value":"I2NNQIWGLV5IYFGA","created_at":"2026-07-05T03:32:53Z"},{"alias_kind":"pith_short_8","alias_value":"I2NNQIWG","created_at":"2026-07-05T03:32:53Z"}],"events":[{"event_type":"record_created","subject_pith_number":"pith:2021:I2NNQIWGLV5IYFGAJY6QXQ3LA4","target":"record","payload":{"canonical_record":{"source":{"id":"2106.11148","kind":"arxiv","version":2},"metadata":{"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CL","submitted_at":"2021-06-21T14:36:38Z","cross_cats_sorted":[],"title_canon_sha256":"c34f3399c5919a81797e3d27aecfabec233b69a2546aadeef8fae053ee1e40de","abstract_canon_sha256":"4d8e248cc641e173b78e6d0c33fe7e2d3996504b61882b65130eb9b9c35f648d"},"schema_version":"1.0"},"canonical_sha256":"469ad822c65d7a8c14c04e3d0bc36b0703f0d7ca748f61dee9c1bbc24c139e28","receipt":{"kind":"pith_receipt","key_id":"pith-v1-2026-05","algorithm":"ed25519","signed_at":"2026-07-05T03:32:53.409769Z","signature_b64":"pVdU7EG1mX8roIOiJLoZPDxhwvGHm6iDIhimRvuq5KKEzxgHjN+YepDYJKOp4JRLPSTKgSdqLC4MkHzIcbcWDA==","signed_message":"canonical_sha256_bytes","builder_version":"pith-number-builder-2026-05-17-v1","receipt_version":"0.3","canonical_sha256":"469ad822c65d7a8c14c04e3d0bc36b0703f0d7ca748f61dee9c1bbc24c139e28","last_reissued_at":"2026-07-05T03:32:53.409226Z","signature_status":"signed_v1","first_computed_at":"2026-07-05T03:32:53.409226Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"source_kind":"arxiv","source_id":"2106.11148","source_version":2,"attestation_state":"computed"},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T03:32:53Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"FPqWE9Dv0Wk2+yaiRmJ5UgkZFTohfWheRHQ2PZQV8tC36DKpcbdAU/8H9qKpFA+UMcvKb+OD+M3+2B6sIqj1CQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-15T15:12:20.190736Z"},"content_sha256":"97d2d1d686753e38c4ac9720442c5916820cc9da318572f3ee3b3ecba5fe24e1","schema_version":"1.0","event_id":"sha256:97d2d1d686753e38c4ac9720442c5916820cc9da318572f3ee3b3ecba5fe24e1"},{"event_type":"graph_snapshot","subject_pith_number":"pith:2021:I2NNQIWGLV5IYFGAJY6QXQ3LA4","target":"graph","payload":{"graph_snapshot":{"paper":{"title":"Explicit Interaction Network for Aspect Sentiment Triplet Extraction","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"","cross_cats":[],"primary_cat":"cs.CL","authors_text":"Baobao Chang, Damai Dai, Peiyi Wang, Runxin Xu, Tianyu Liu, Zhifang Sui","submitted_at":"2021-06-21T14:36:38Z","abstract_excerpt":"Aspect Sentiment Triplet Extraction (ASTE) aims to recognize targets, their sentiment polarities and opinions explaining the sentiment from a sentence. ASTE could be naturally divided into 3 atom subtasks, namely target detection, opinion detection and sentiment classification. We argue that the proper subtask combination, compositional feature extraction for target-opinion pairs, and interaction between subtasks would be the key to success. Prior work, however, may fail on `one-to-many' or `many-to-one' situations or derive non-existent sentiment triplets due to defective subtask formulation,"},"claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2106.11148","kind":"arxiv","version":2},"verdict":{"id":null,"model_set":{},"created_at":null,"strongest_claim":"","one_line_summary":"","pipeline_version":null,"weakest_assumption":"","pith_extraction_headline":""},"integrity":{"clean":true,"summary":{"advisory":0,"critical":0,"by_detector":{},"informational":0},"endpoint":"/pith/2106.11148/integrity.json","findings":[],"available":true,"detectors_run":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938"},"references":{"count":0,"sample":[],"resolved_work":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"},"verdict_id":null},"signer":{"signer_id":"pith.science","signer_type":"pith_registry","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54"},"created_at":"2026-07-05T03:32:53Z","supersedes":[],"prev_event":null,"signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"ryKdksP/ksaOLvMeC57L+BTy2g8P+gP3Jm/F2JdGziGMpQwLOa35Pa56SCrgqO1RfwlcTmQht0Nmu7n0ha/NCQ==","signed_message":"open_graph_event_sha256_bytes","signed_at":"2026-08-15T15:12:20.191476Z"},"content_sha256":"0f55f866b1c3e7db4a9ea2ec5b83c335c0d293b7b4a460d7f3250de5bf5cbc9e","schema_version":"1.0","event_id":"sha256:0f55f866b1c3e7db4a9ea2ec5b83c335c0d293b7b4a460d7f3250de5bf5cbc9e"}],"timestamp_proofs":[],"mirror_hints":[{"mirror_type":"https","name":"Pith Resolver","base_url":"https://pith.science","bundle_url":"https://pith.science/pith/I2NNQIWGLV5IYFGAJY6QXQ3LA4/bundle.json","state_url":"https://pith.science/pith/I2NNQIWGLV5IYFGAJY6QXQ3LA4/state.json","well_known_bundle_url":"https://pith.science/.well-known/pith/I2NNQIWGLV5IYFGAJY6QXQ3LA4/bundle.json","status":"primary"}],"public_keys":[{"key_id":"pith-v1-2026-05","algorithm":"ed25519","format":"raw","public_key_b64":"stVStoiQhXFxp4s2pdzPNoqVNBMojDU/fJ2db5S3CbM=","public_key_hex":"b2d552b68890857171a78b36a5dccf368a953413288c353f7c9d9d6f94b709b3","fingerprint_sha256_b32_first128bits":"RVFV5Z2OI2J3ZUO7ERDEBCYNKS","fingerprint_sha256_hex":"8d4b5ee74e4693bcd1df2446408b0d54","rotates_at":null,"url":"https://pith.science/pith-signing-key.json","notes":"Pith uses this Ed25519 key to sign canonical record SHA-256 digests. Verify with: ed25519_verify(public_key, message=canonical_sha256_bytes, signature=base64decode(signature_b64))."}],"merge_version":"pith-open-graph-merge-v1","built_at":"2026-08-15T15:12:20Z","links":{"resolver":"https://pith.science/pith/I2NNQIWGLV5IYFGAJY6QXQ3LA4","bundle":"https://pith.science/pith/I2NNQIWGLV5IYFGAJY6QXQ3LA4/bundle.json","state":"https://pith.science/pith/I2NNQIWGLV5IYFGAJY6QXQ3LA4/state.json","well_known_bundle":"https://pith.science/.well-known/pith/I2NNQIWGLV5IYFGAJY6QXQ3LA4/bundle.json"},"state":{"state_type":"pith_open_graph_state","state_version":"1.0","pith_number":"pith:2021:I2NNQIWGLV5IYFGAJY6QXQ3LA4","merge_version":"pith-open-graph-merge-v1","event_count":2,"valid_event_count":2,"invalid_event_count":0,"equivocation_count":0,"current":{"canonical_record":{"metadata":{"abstract_canon_sha256":"4d8e248cc641e173b78e6d0c33fe7e2d3996504b61882b65130eb9b9c35f648d","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CL","submitted_at":"2021-06-21T14:36:38Z","title_canon_sha256":"c34f3399c5919a81797e3d27aecfabec233b69a2546aadeef8fae053ee1e40de"},"schema_version":"1.0","source":{"id":"2106.11148","kind":"arxiv","version":2}},"source_aliases":[{"alias_kind":"arxiv","alias_value":"2106.11148","created_at":"2026-07-05T03:32:53Z"},{"alias_kind":"arxiv_version","alias_value":"2106.11148v2","created_at":"2026-07-05T03:32:53Z"},{"alias_kind":"doi","alias_value":"10.48550/arxiv.2106.11148","created_at":"2026-07-05T03:32:53Z"},{"alias_kind":"pith_short_12","alias_value":"I2NNQIWGLV5I","created_at":"2026-07-05T03:32:53Z"},{"alias_kind":"pith_short_16","alias_value":"I2NNQIWGLV5IYFGA","created_at":"2026-07-05T03:32:53Z"},{"alias_kind":"pith_short_8","alias_value":"I2NNQIWG","created_at":"2026-07-05T03:32:53Z"}],"graph_snapshots":[{"event_id":"sha256:0f55f866b1c3e7db4a9ea2ec5b83c335c0d293b7b4a460d7f3250de5bf5cbc9e","target":"graph","created_at":"2026-07-05T03:32:53Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"graph_snapshot":{"author_claims":{"count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57","strong_count":0},"builder_version":"pith-number-builder-2026-05-17-v1","claims":{"count":0,"items":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"integrity":{"available":true,"clean":true,"detectors_run":[],"endpoint":"/pith/2106.11148/integrity.json","findings":[],"snapshot_sha256":"c28c3603d3b5d939e8dc4c7e95fa8dfce3d595e45f758748cecf8e644a296938","summary":{"advisory":0,"by_detector":{},"critical":0,"informational":0}},"paper":{"abstract_excerpt":"Aspect Sentiment Triplet Extraction (ASTE) aims to recognize targets, their sentiment polarities and opinions explaining the sentiment from a sentence. ASTE could be naturally divided into 3 atom subtasks, namely target detection, opinion detection and sentiment classification. We argue that the proper subtask combination, compositional feature extraction for target-opinion pairs, and interaction between subtasks would be the key to success. Prior work, however, may fail on `one-to-many' or `many-to-one' situations or derive non-existent sentiment triplets due to defective subtask formulation,","authors_text":"Baobao Chang, Damai Dai, Peiyi Wang, Runxin Xu, Tianyu Liu, Zhifang Sui","cross_cats":[],"headline":"","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CL","submitted_at":"2021-06-21T14:36:38Z","title":"Explicit Interaction Network for Aspect Sentiment Triplet Extraction"},"references":{"count":0,"internal_anchors":0,"resolved_work":0,"sample":[],"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"source":{"id":"2106.11148","kind":"arxiv","version":2},"verdict":{"created_at":null,"id":null,"model_set":{},"one_line_summary":"","pipeline_version":null,"pith_extraction_headline":"","strongest_claim":"","weakest_assumption":""}},"verdict_id":null}}],"author_attestations":[],"timestamp_anchors":[],"storage_attestations":[],"citation_signatures":[],"replication_records":[],"corrections":[],"mirror_hints":[],"record_created":{"event_id":"sha256:97d2d1d686753e38c4ac9720442c5916820cc9da318572f3ee3b3ecba5fe24e1","target":"record","created_at":"2026-07-05T03:32:53Z","signer":{"key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signer_id":"pith.science","signer_type":"pith_registry"},"payload":{"attestation_state":"computed","canonical_record":{"metadata":{"abstract_canon_sha256":"4d8e248cc641e173b78e6d0c33fe7e2d3996504b61882b65130eb9b9c35f648d","cross_cats_sorted":[],"license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","primary_cat":"cs.CL","submitted_at":"2021-06-21T14:36:38Z","title_canon_sha256":"c34f3399c5919a81797e3d27aecfabec233b69a2546aadeef8fae053ee1e40de"},"schema_version":"1.0","source":{"id":"2106.11148","kind":"arxiv","version":2}},"canonical_sha256":"469ad822c65d7a8c14c04e3d0bc36b0703f0d7ca748f61dee9c1bbc24c139e28","receipt":{"algorithm":"ed25519","builder_version":"pith-number-builder-2026-05-17-v1","canonical_sha256":"469ad822c65d7a8c14c04e3d0bc36b0703f0d7ca748f61dee9c1bbc24c139e28","first_computed_at":"2026-07-05T03:32:53.409226Z","key_id":"pith-v1-2026-05","kind":"pith_receipt","last_reissued_at":"2026-07-05T03:32:53.409226Z","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","receipt_version":"0.3","signature_b64":"pVdU7EG1mX8roIOiJLoZPDxhwvGHm6iDIhimRvuq5KKEzxgHjN+YepDYJKOp4JRLPSTKgSdqLC4MkHzIcbcWDA==","signature_status":"signed_v1","signed_at":"2026-07-05T03:32:53.409769Z","signed_message":"canonical_sha256_bytes"},"source_id":"2106.11148","source_kind":"arxiv","source_version":2}}},"equivocations":[],"invalid_events":[],"applied_event_ids":["sha256:97d2d1d686753e38c4ac9720442c5916820cc9da318572f3ee3b3ecba5fe24e1","sha256:0f55f866b1c3e7db4a9ea2ec5b83c335c0d293b7b4a460d7f3250de5bf5cbc9e"],"state_sha256":"968fd41eb321124488bfd252b370166e512044a74f044a73331a9b200c52f2b4"},"bundle_signature":{"signature_status":"signed_v1","algorithm":"ed25519","key_id":"pith-v1-2026-05","public_key_fingerprint":"8d4b5ee74e4693bcd1df2446408b0d54","signature_b64":"eSubNOz5BaSNw10Oo8MyOJgraNjNxVRZWzqNrkOHf47zP0DBVBvTEsjODyuMgvvctTYpqIwOSzWPl1sBui9UBQ==","signed_message":"bundle_sha256_bytes","signed_at":"2026-08-15T15:12:20.197225Z","bundle_sha256":"72bb1d85e49387ba6c053c7110d3dbff540efcf90233cd559aa6e7e8149e9b65"}}